So lets say we do happen to come in contact with an intelligent life form. Stereotypically aliens are far more advanced than us Humans, they have mastered space travel, can read our thoughts, and are basically intellectually superior. Well what if they were hundreds or thousands of years behind in technology? And what would they look like? Would they be smooth skinned humanoids or 10 legged lizard creatures with 2 tails? Its sad to know we wont come in contact in any of our lifetimes should there be life out there somewhere. Please discuss

Also, this stuff tends to be a gateway topic for religious beliefs, please do try to keep the religion out

What are the chances of there being a habitable planet like earth? Very slim.
Depends, life may or may not have to have a earth like place to live, whats easy for us to live in may be extremely toxic to something else?
Even if there are no other earth like worlds ( in the vast sea of space there most likely at least one other similar planet ) that does not mean life has to have the same conditions?